rfnoc: add rx and tx transports, and amend rfnoc_graph

transports:

Transports build on I/O service and implements flow control and
sequence number checking.

The rx streamer subclass extends the streamer implementation to connect
it to the rfnoc graph. It receives configuration values from property
propagation and configures the streamer accordingly. It also implements
the issue_stream_cmd rx_streamer API method.

Add implementation of rx streamer creation and method to connect it to
an rfnoc block.

rfnoc_graph: Cache more connection info, clarify contract

Summary of changes:
- rfnoc_graph stores more information about static connections at the
  beginning. Some search algorithms are replaced by simpler lookups.
- The contract for connect() was clarified. It is required to call
  connect, even for static connections.

1 files changed, 46 insertions, 0 deletions

diff --git a/host/tests/rfnoc_chdr_test.cpp b/host/tests/rfnoc_chdr_test.cpp
index 417ed2f96..1c63d5976 100644
--- a/host/tests/rfnoc_chdr_test.cpp
+++ b/host/tests/rfnoc_chdr_test.cpp
@@ -222,3 +222,49 @@ BOOST_AUTO_TEST_CASE(chdr_strc_packet_no_swap_64)
         std::cout << pyld.to_string();
     }
 }
+
+BOOST_AUTO_TEST_CASE(chdr_generic_packet_calculate_pyld_offset_64)
+{
+    // Check calculation without timestamp
+    auto test_pyld_offset = [](chdr_packet::uptr& pkt,
+        const packet_type_t pkt_type,
+        const size_t num_mdata)
+    {
+        uint64_t buff[MAX_BUF_SIZE_WORDS];
+        chdr_header header;
+        header.set_pkt_type(pkt_type);
+        header.set_num_mdata(num_mdata);
+
+        pkt->refresh(reinterpret_cast<void*>(buff), header, 0);
+
+        const size_t pyld_offset = pkt->calculate_payload_offset(
+            pkt_type, num_mdata);
+
+        void* pyld_ptr = pkt->get_payload_ptr();
+
+        const size_t non_pyld_bytes = static_cast<size_t>(
+            reinterpret_cast<uint8_t*>(pyld_ptr) -
+            reinterpret_cast<uint8_t*>(buff));
+
+        BOOST_CHECK(pyld_offset == non_pyld_bytes);
+    };
+
+    {
+        chdr_packet::uptr pkt = chdr64_be_factory.make_generic();
+        test_pyld_offset(pkt, PKT_TYPE_DATA_NO_TS, 0);
+        test_pyld_offset(pkt, PKT_TYPE_DATA_NO_TS, 1);
+        test_pyld_offset(pkt, PKT_TYPE_DATA_NO_TS, 2);
+        test_pyld_offset(pkt, PKT_TYPE_DATA_WITH_TS, 0);
+        test_pyld_offset(pkt, PKT_TYPE_DATA_WITH_TS, 1);
+        test_pyld_offset(pkt, PKT_TYPE_DATA_WITH_TS, 2);
+    }
+    {
+        chdr_packet::uptr pkt = chdr256_be_factory.make_generic();
+        test_pyld_offset(pkt, PKT_TYPE_DATA_NO_TS, 0);
+        test_pyld_offset(pkt, PKT_TYPE_DATA_NO_TS, 1);
+        test_pyld_offset(pkt, PKT_TYPE_DATA_NO_TS, 2);
+        test_pyld_offset(pkt, PKT_TYPE_DATA_WITH_TS, 0);
+        test_pyld_offset(pkt, PKT_TYPE_DATA_WITH_TS, 1);
+        test_pyld_offset(pkt, PKT_TYPE_DATA_WITH_TS, 2);
+    }
+}